如何在WordPress中添加注册中的用户角色下拉菜单

如何在wordpress注册中添加用户角色下拉列表

 function myplugin_register_form() {

global $wp_roles;

echo \'<select name="role">\';
foreach ( $wp_roles->roles as $key=>$value ): 
echo \'<option value="\'.$key.\'">\'.$value[\'name\'].\'</option>\';
 endforeach;
echo \'</select>\';


}

add_action( \'register_form\', \'myplugin_register_form\' );

add_action( \'user_register\', \'myplugin_user_register\' );
    function myplugin_user_register( $user_id ) {
        if ( ! empty( $_POST[\'role\'] ) ) {
            update_user_meta( $user_id, \'role\', trim( $_POST[\'role\'] ) );
        }
    }

我在函数中使用了此代码。php但不起作用

//1. Add a new form element... add_action( \'register_form\', \'myplugin_register_form\' ); function myplugin_register_form() { global $wp_roles; echo \'<select name="role" class="input">\'; foreach ( $wp_roles->roles as $key=>$value ) { // Exclude default roles such as administrator etc. Add your own if ( ! in_array( $value[\'name\'], [ \'Administrator\', \'Contributor\', ] ) { echo \'<option value="\'.$key.\'">\'.$value[\'name\'].\'</option>\'; } } echo \'</select>\'; } //2. Add validation. add_filter( \'registration_errors\', \'myplugin_registration_errors\', 10, 3 ); function myplugin_registration_errors( $errors, $sanitized_user_login, $user_email ) { if ( empty( $_POST[\'role\'] ) || ! empty( $_POST[\'role\'] ) && trim( $_POST[\'role\'] ) == \'\' ) { $errors->add( \'role_error\', __( \'<strong>ERROR</strong>: You must include a role.\', \'mydomain\' ) ); } return $errors; } //3. Finally, save our extra registration user meta. add_action( \'user_register\', \'myplugin_user_register\' ); function myplugin_user_register( $user_id ) { $user_id = wp_update_user( array( \'ID\' => $user_id, \'role\' => $_POST[\'role\'] ) ); }

<?php global $wp_roles; ?> <select name="role"> <?php foreach ( $wp_roles->roles as $key=>$value ): ?> <option value="<?php echo $key; ?>"><?php echo $value[\'name\']; ?></option> <?php endforeach; ?> </select>

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